Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Millon, M."'
Autor:
North, P., Hayes, M., Millon, M., Verhamme, A., Trebitsch, M., Blaizot, J., Courbin, F., Chelouche, D.
The radio-quiet quasar SDSS J1240+1455 lies at a redshift of z=3.11, is surrounded by a Ly-alpha blob (LAB), and is absorbed by a proximate damped Ly-alpha system. In order to better define the morphology of the blob and determine its emission mechan
Externí odkaz:
http://arxiv.org/abs/2402.08488
Autor:
Vernardos, G., Sluse, D., Pooley, D., Schmidt, R. W., Millon, M., Weisenbach, L., Motta, V., Anguita, T., Saha, P., O'Dowd, M., Peel, A., Schechter, P. L.
Strong gravitational lensing of quasars has the potential to unlock the poorly understood physics of these fascinating objects, as well as serve as a probe of the lensing mass distribution and of cosmological parameters. In particular, gravitational
Externí odkaz:
http://arxiv.org/abs/2312.00931
Autor:
Birrer, S., Millon, M., Sluse, D., Shajib, A. J., Courbin, F., Koopmans, L. V. E., Suyu, S. H., Treu, T.
Multiply lensed sources experience a relative time delay in the arrival of photons. This effect can be used to measure absolute distances and the Hubble constant ($H_0$) and is known as time-delay cosmography. The methodology is independent of the lo
Externí odkaz:
http://arxiv.org/abs/2210.10833
Publikováno v:
A&A 668, A77 (2022)
We report periodic oscillations in the 15-year long optical light curve of the gravitationally lensed quasar QJ0158-4325. The signal is enhanced during a high magnification microlensing event undergone by the fainter lensed image of the quasar, betwe
Externí odkaz:
http://arxiv.org/abs/2207.00598
Autor:
Schmidt, T., Treu, T., Birrer, S., Shajib, A. J., Lemon, C., Millon, M., Sluse, D., Agnello, A., Anguita, T., Auger-Williams, M. W., McMahon, R. G., Motta, V., Schechter, P., Spiniello, C., Kayo, I., Courbin, F., Ertl, S., Fassnacht, C. D., Frieman, J. A., More, A., Schuldt, S., Suyu, S. H., Aguena, M., Andrade-Oliveira, F., Annis, J., Bacon, D., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Conselice, C., Costanzi, M., da Costa, L. N., Pereira, M. E. S., De Vicente, J., Desai, S., Doel, P., Everett, S., Ferrero, I., Friedel, D., García-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Lahav, O., Menanteau, F., Miquel, R., Palmese, A., Paz-Chinchón, F., Pieres, A., Malagón, A. A. Plazas, Prat, J., Rodriguez-Monroy, M., Romer, A. K., Sanchez, E., Scarpine, V., Sevilla-Noarbe, I., Smith, M., Suchyta, E., Tarle, G., To, C., Varga, T. N.
Gravitational time delays provide a powerful one step measurement of $H_0$, independent of all other probes. One key ingredient in time delay cosmography are high accuracy lens models. Those are currently expensive to obtain, both, in terms of comput
Externí odkaz:
http://arxiv.org/abs/2206.04696
Autor:
Shajib, A. J., Wong, K. C., Birrer, S., Suyu, S. H., Treu, T., Buckley-Geer, E., Lin, H., Rusu, C. E., Poh, J., Palmese, A., Agnello, A., Auger-Williams, M. W., Galan, A., Schuldt, S., Sluse, D., Courbin, F., Frieman, J., Millon, M.
Publikováno v:
A&A 667, A123 (2022)
The importance of alternative methods for measuring the Hubble constant, such as time-delay cosmography, is highlighted by the recent Hubble tension. It is paramount to thoroughly investigate and rule out systematic biases in all measurement methods
Externí odkaz:
http://arxiv.org/abs/2202.11101
Autor:
Chan, J. H. H., Lemon, C., Courbin, F., Gavazzi, R., Clément, B., Millon, M., Paic, E., Rojas, K., Savary, E., Vernardos, G., Cuillandre, J. -C., Fabbro, S., Gwyn, S., Hudson, M. J., Kilbinger, M., McConnachie, A.
Publikováno v:
A&A 659, A140 (2022)
We report the discovery of five new doubly-imaged lensed quasars from the first 2500 square degrees of the ongoing Canada-France Imaging Survey (CFIS), which is a component of the Ultraviolet Near Infrared Optical Northern Survey (UNIONS), selected f
Externí odkaz:
http://arxiv.org/abs/2110.09535
Publikováno v:
A&A 659, A21 (2022)
Gravitational microlensing is a powerful tool to probe the inner structure of strongly lensed quasars and to constrain parameters of the stellar mass function of lens galaxies. This is done by analysing microlensing light curves between the multiple
Externí odkaz:
http://arxiv.org/abs/2110.05500
J1721$+$8842: a gravitationally lensed binary quasar with a proximate damped Lyman-$\alpha$ absorber
Publikováno v:
A&A 657, A113 (2022)
High-redshift binary quasars provide key insights into mergers and quasar activity, and are useful tools for probing the spatial kinematics and chemistry of galaxies along the line-of-sight. However, only three sub-10-kpc binaries have been confirmed
Externí odkaz:
http://arxiv.org/abs/2109.01144
Publikováno v:
A&A 647, A115 (2021)
Time-delay cosmography in strongly lensed quasars offer an independent way of measuring the Hubble constant, $H_0$. However, it has been proposed that the combination of microlensing and source-size effects, also known as microlensing time delay can
Externí odkaz:
http://arxiv.org/abs/2007.14416